Avalanche 1500 4WD V8-5.3L (2007)
1. Position the water pump (300) and NEW gaskets (306) to the engine block.
2. Install the water pump bolts (301).
1. Tighten the bolts a first pass to 15 N.m (11 lb ft).
2. Tighten the bolts a final pass to 30 N.m (22 lb ft).
3. Position and install the heater inlet hose (2) to the water pump.
4. Position the heater inlet hose clamp (1) at the water pump.